Subject SAT (College Board) Biology: Questions 283 - 288 of 805

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Question number: 283

» Cell

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MCQ▾

Question

Agar-agar commonly used in bacterial cultures and medication is obtained from

Choices

Choice (4) Response

a.

Ulva

b.

Sargassum

c.

Ulothrix

d.

Gelidium

Question number: 284

» DNA and Evolution

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MCQ▾

Question

Single stranded unpaired extensions formed by restriction enzyme upon cleavage is called as

Choices

Choice (4) Response

a.

flush ends

b.

blunt ends

c.

sticky ends

d.

All of the above

Question number: 285

» Cell

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MCQ▾

Question

A somatic cell dividing mitotically, undergoes karyokinesis but fails to undergo cytokinesis. The resultant will have

Choices

Choice (4) Response

a.

2 diploid nuclei

b.

1 diploid nuclues

c.

2 haploid nuclei

d.

1 tetraploid nucleus

Question number: 286

» Cell

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MCQ▾

Question

How many successive generations of mitosis must occur to produce 256 cells?

Choices

Choice (4) Response

a.

7

b.

128

c.

256

d.

8

Question number: 287

» Atoms and Compounds

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MCQ▾

Question

Which one of the following is not true for water?

Choices

Choice (4) Response

a.

water molecules have a high boiling point due to intermolecular hydrogen bonding

b.

in ice each water molecule is bonded to four others

c.

ice has a structure similar to that of diamond

d.

water has a maximum density at

Question number: 288

» Atoms and Compounds

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MCQ▾

Question

Electrons are

Choices

Choice (4) Response

a.

Take up most of the mass in the atom

b.

Are the same as the atomic number

c.

Are negatively charged an orbit the nucleus

d.

Are positively charged and make up the nucleus

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